background image

 
 

Simret 4000 Instructions, Issue 10, Jan 2011 

© 1994-2011, Turnkey Instruments Ltd. Page 10 of 17 

can be adjusted if required via the 

Adjust Values Menu. 

The applied force at which the PFT 

triggers the start of braking is also shown in this menu

 

 

To use as a simple ON/OFF trigger pad, just set the measure 

Pedal Force

 setting off. The PFT 

will then use a fixed setting of about 5 kgF to trigger the start and the

 Gradient Measurement

 

mode displays ‘BRAKE ON’ when a force greater than the internal trigger setting is applied. 

 

The instrument will sense if a non-Bluetooth Pedal Pad is connected to the DIN socket. In this 

case the instrument will use the connected Pedal Pad (and not attempt to pair) either as an 

analog pedal force transducer or as a simple on/off trigger switch. The 

Gradient 

Measurement

 mode will display either the applied pedal force or ‘BRAKE ON’ as above 

(providing external trigger is enabled). Note that the instrument will not attempt to zero an 

analog PFT connected in this manner and you must adjust its zero manually in the

 Adjust 

Values 

menu.

 

 

Setup Instrument Menu 

The Editor PIN may be required to access this menu 

Adjust Values:

 

single-click

 to select the 

Adjust Values

 menu. 

Change Settings: 

single-click

 to select the 

Change Settings

 menu. 

Setup Bluetooth: 

single-click

 to select the 

Setup Bluetooth

 menu (Bluetooth must be ON). 

Trim Zeros:

 

single-click

 to accurately trim the zero readings of the instrument by following the on 

screen instructions. Any flat surface may be used, it need not be horizontal. 

Erase all Tests:

 

single-click

 to erase all the tests in the instrument’s memory, regardless of 

whether marked for erase or not. You will be prompted to confirm 

Set Time and Date:

 

single-click

 to set the time and date by following the on screen instructions 

Adjust Contrast:

 

single-click

 and 

►◄

 to adjust the contrast of the display 

Adjust Backlight:

 

single-click

 and 

►◄

 to adjust the brightness of the backlight. The brighter it 

is the more battery power will be used. To conserve power, the light turns off if there has been 
no input for about 2 minutes. 

Defragment Memory:

 

single-click

 to confirm that the memory is fully defragmented and all free 

space is available for use. 

Format SD Card:

 

single-click

 to format the SD Card to make it visible to a personal computer 

(FAT16 file system). Sets all the Folder names to FFFFFnnn.TKI (nnn=000 to 999, hidden 
file attribute) but does not overwrite previously stored data. Folders are in the BACKUP 
subdirectory of the TURNKEY root directory 

Configure Printer:

 

single-click

 to configure printer fonts and timeouts. Also resets the Bluetooth 

to its factory defaults in case of problems.

 

Calibration Report:

 single-click

 to print calibration report. 

User PIN:

 single-click to change the PIN required to use the instrument. Make a note of it! (5424) 

Editor PIN:

 single-click to change the PIN required to set-up the instrument. Make a note of it! 

(4748) 

Main Menu: 

single-click

 to return to 

Main Menu.

 

 

Summary of Contents for Simret 4000

Page 1: ...f a menu will return you to the previous menu or use the button SWITCHING ON To power the instrument hold down OK and then release The display will appear when OK is released The instrument will perform a short self test and display its software version and when calibration is next due The Start Menu will then appear The self test will warn if re calibration is overdue and if more than 80 tests ha...

Page 2: ...ying to pair until the device is switched on and pairing is successful Successful pairing normally takes just a few seconds although if many discoverable Bluetooth or WiFi devices are in range it may take a little longer If the device will not pair just single click to try again or hold down and release to abandon and investigate To pair with the Printer first make sure the printer is switched on ...

Page 3: ... connector with the cable provided the SIMRET will not make any attempt to pair using Bluetooth In this case after arming for a test just depress the pedal to trigger the instrument RE CALIBRATION Your Simret 4000 is a precision instrument and must be recalibrated annually by an accredited laboratory This gives you the optimum re assurance that the brake ratio measurements will always be accurate ...

Page 4: ...btained when the instrument base is parallel to the road surface The instrument is best used with the Pedal Pad attached to the brake pedal This informs the instrument when the brakes are applied so it can then measure the delay time of the braking system This is the time interval between applying the brakes and the deceleration start threshold being reached For heavy vehicles this may be quite si...

Page 5: ...n the instrument will try to force you to confirm the ground slope at the end of the test It has to do this because it doesn t know the proper direction of the slope until after the test You can override this by selecting NO for slope at stop during the arming menu in which case the instrument will assume it is positioned in the vehicle exactly parallel to the ground Over the years Turnkey has pro...

Page 6: ...tions single click to show a list of up to 16 site conditions or user notes to highlight then click again to select or double click to edit Measure GRADIENT single click to measure the slope gradient The instrument continuously measures and displays the slope gradient in percent A negative number means a downward gradient If a very accurate measurement is required first trim the instrument zeros s...

Page 7: ... you to hold the instrument on the brake while arming and also allows the instrument to determine its direction of travel but see Allow Coasting in Change Settings Until you reach a speed of 5 kph or mph you may still elect to measure the Slope at Stop and to Pause before doing so move the highlight and click ON or OFF as required see Change Settings The instrument will beep as this speed is passe...

Page 8: ...e times of the external start trigger if enabled and the start and end of deceleration Single click to close the graph and review other results Single click Print to print this test now regardless of the whether or not the test has been marked for print The printer will turn on automatically if it has been paired previously if not switch on first by pressing its button to pair Printing graphs and ...

Page 9: ...tic Backup if the SD card is fitted whenever the instrument switches off with its internal memory more than 80 full or containing more than 75 tests the internal memory will be automatically backed up to the next Folder Number on the SD Card The internal memory will then be erased This will be repeated when it is next full until all 1000 folders have been used 75 000 tests If the automatic backup ...

Page 10: ...k to accurately trim the zero readings of the instrument by following the on screen instructions Any flat surface may be used it need not be horizontal Erase all Tests single click to erase all the tests in the instrument s memory regardless of whether marked for erase or not You will be prompted to confirm Set Time and Date single click to set the time and date by following the on screen instruct...

Page 11: ...n The true stop time is the start of this time End Delay 2 5 s delay before measuring the stop point slope gradient Only if Slope at Stop has been selected Peak over 0 20 sec the minimum time the peak reading has to be sustained Dive 5 0 deg g compensation for the tilt of the vehicle in degrees tilt per g of deceleration caused by the movement of its suspension as it decelerates PFT trig 20 0 kgF ...

Page 12: ...ces The passcode is 1234 Printing pair single click on one of these to pair for printing Bluetooth Address single click to show the Bluetooth Device List as addresses to highlight then single click to select or double click to edit see Editing The instrument will automatically try to pair with the chosen device before printing Friendly Name single click to show the Bluetooth Device List as friendl...

Page 13: ...nits of g External trig Yes YES to start at external trigger NO to self start at deceleration Delay in Mean No YES to include the brake delay in the mean calculation NO to exclude gives higher readings MFDD markers Yes YES to mark 80 and 10 V on graphs NO for no MFDD markers Calc Distance Yes YES to calculate stopping distance NO do not calculated Slope at stop No YES use gradient at stop as refer...

Page 14: ...f you have selected Auto Alignment the instrument will force you to confirm the slope of the ground at the end of the test for it doesn t know the axis for measurement until after the test has begun Effectively Auto Alignment sets Slope at Stop ON if Brake Effort is being measured Allow Coasting is mainly for railway use and is only available if Auto Alignment is off and the External Trigger is se...

Page 15: ...as the mean deceleration between 80 and 10 of the test speed and is now used internationally as the standard measure of brake performance When MFDD markers is on marker lines are placed on the graphs at the 80 V and 10 V points These are in addition to the graph marker lines at the start and stop deceleration thresholds and the external trigger point Note if brake effort is being measured the Mean...

Page 16: ...If your PC is equipped with a Turnkey Bluetooth Adaptor the instrument will be discovered by it and a wireless connection made whenever it is switched on and discoverable e g in the Start Menu and Main Menu Alternatively use a Turnkey USB Link to physically connect the instrument s DIN connector to a USB port on your computer The instrument will sense the DIN connector and override the Bluetooth i...

Page 17: ... shown at the bottom of the page Click Export to download the selected page of information to the instrument Click Import to upload existing information from the instrument Click Save to save the page of information to your Windows directory for future use for example if you want to download the same plant list to several instruments Note that each tabbed page must be exported or imported and save...

Reviews: